111802401 has 12 divisors (see below), whose sum is σ = 161584020. Its totient is φ = 74492640.

The previous prime is 111802393. The next prime is 111802417. The reversal of 111802401 is 104208111.

It can be written as a sum of positive squares in 2 ways, for example, as 46580625 + 65221776 = 6825^2 + 8076^2 .

It is not a de Polignac number, because 111802401 - 2³ = 111802393 is a prime.

It is not an unprimeable number, because it can be changed into a prime (111803401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 29431 + ... + 33011.

It is an arithmetic number, because the mean of its divisors is an integer number (13465335).

Almost surely, 2^111802401 is an apocalyptic number.

It is an amenable number.

111802401 is a deficient number, since it is larger than the sum of its proper divisors (49781619).

111802401 is a wasteful number, since it uses less digits than its factorization.

111802401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7056 (or 7053 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

The square root of 111802401 is about 10573.6654477054. The cubic root of 111802401 is about 481.7448087576.

The spelling of 111802401 in words is "one hundred eleven million, eight hundred two thousand, four hundred one".